Hi, I use the Ergo carrier with my seven month old, 20 pound ds and I really like it. I had spinal fusion surgery and so I have a lot of back pain but I find the Ergo to be great. I prefer using it with him on my back. If you adjust it right, it is comfortable and I can wear it for a long time. I would love to figure out a way to carry ds on my hips too, someone said it is possible with the Ergo but I do not know how. Anyway, I recommend the Ergo and I believe there is a thirty day trial period where if you find you do not like it, you can send it back for a refund. Good luck!